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Re: Kulindapteryx and Daurosaurus, new hypsilophodont ornithopods from Upper Jurassic of Siberia, Russia



David Černý was kind enough to translate the relevant (bristle based) portions 
of the paper.

Thanks David.

Jason


----- Forwarded Message -----
From: David Černý <david.cerny1@gmail.com>

"The impressions of integument in PIN 5435/57 are located close to the
humerus and are concentrated in front of it (mostly at its proximal
end) and behind it, where they are represented by [skin] derivatives
of two types. One of them takes the form of oval scutes or scales, the
other one [consists of] bristle-like structures. In this specimen
(Plate XI, Fig. 4), around the posterior margin of the humerus, the
"bristles" lie atop the scutes. However, some of the "bristles" appear
to be extensions of the scutes. If so, the "bristles" can be either
the result of scale splitting or the consequence of their differential
growth. Judging by the arrangement of the areas [of bristles] in front
of and behind the humerus, the described type of integument evenly
covered the surface of the forelimb, and perhaps of the whole body.
Interestingly, with regard to the length of the bristles, this fossil
differs from the one that is described below.

In PIN 5435/56, the existence of which has played a role in the choice
of the name for Kulindapteryx ukureica gen. et sp. nov., long
bristle-like structures are present next to the bones of the forelimb
(the humerus is preserved on the main slab and the radius on the
counterslab), forming an extensive halo in the matrix similar to wing
impressions of fossil birds.

The preservation of the bones of the last specimen makes even an
approximate systematic placement impossible. However, considering that
two length variants of bristle-like structures on the same bones
correspond to two species of hypsilophodontids, it is not ruled out
that in Kulinda, different species of hypsilophodontids had "bristles"
of different length. If so, it would be in agreement with the pattern
of predominance of Daurosaurus olovus gen. et sp. nov. remains in the
locality, which we have established, and judging from the d
mpressions of bristles of different length, it is
possible to tentatively assume that it was the latter species that had
the short-bristled type of scales. In that case, it remains to infer
the presence of the long-bristled type of integumental appendages for
Kulindapteryx ukureica gen. et sp. nov.

The authors intend to assess the structural details of the Kulinda
hypsilophodontians' skin appendages in a separate publication."


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

No doubt the paper that Ben Creisler just posted to the DML/VPML is the paper 
in question.

__________________________________________________________________________________



Transliteration:


Otpechatki pokrovov na ekz. PIN, No 5435/57 lezhat vblizi plechevoi
kosti i kontsentriruyutsya speredi (v osnovnom u proksimal'nogo konca)
i szadi ot nee, gde predstavleny derivatami dvukh tipov. Odin iz nikh
imeet vid oval'noi plastinki-cheshuiki, a drugoi -- shchetinkovidnykh
obrazovanii. Na dannom obraztse (tabl. XI, fig. 4) v oblasti zadnego
kraya plechevoi kosti "shchetinki" perekryvayut plastinki. Odnako
nekotorye "shchetinki", kak kazhetsya, yavlyayutsya prodolzheniem
plastinok. Esli tak, to "shchetinki" mogut byt' kak rezul'tatom
rasshchepleniya plastinok, tak i sledstviem differentsirovannogo rosta
poslednikh. Sudya po raspolozheniyu polei speredi i szadi plechevoi
kosti, opisannyi tip pokrovov ravnomerno raspredelyalsya po
poverkhnosti perednei konechnosti, a mozhet byt', i vsego tela.
Primechatel'no, chto po dline shchetinok dannaya nakhodka otlichaetsya
ot toi, chto predstavlena nizhe.

Na ekz. PIN, No 5435/56 (tabl. XI, fig. 5), nalichie kotorogo sygralo
nekotoruyu rol' v vybore nazvaniya roda dlya Kulindapteryx ukureica
gen. et sp. nov., ryadom s kostyami perednei konechnosti (na osnovnom
otpechatke sokhranilas' plechevaya kost', a na protivootpechatke --
radial'naya kost') predstavleny dlinnye shchetinkovidnye obrazovaniya,
ulozhennye na porode v obshirnom pole, kak na otpechatkakh kryl'ev
iskopae
lednego obrazca ne pozvolyaet sdelat' dazhe
priblizitel'nogo sistematicheskogo opredeleniya. Odnako, esli uchest',
chto dva varianta dliny shchetinkovidnykh obrazovanii na odnotipnykh
kostyakh sootvetstvuyut dvum vidam gipsilofodontii, to ne isklyucheno,
chto v Kulinde raznye vidy gipsilofodontii obladali raznoi dlinoi
"shchetinok". Esli tak, to v sootvetstvii s ustanovlennoi nami
zakonomernost'yu o preobladanii v mestonakhozhdenii ostatkov
Daurosaurus olovus gen. et sp. nov. i sudya po raspredeleniyu obrazcov
s otpechatkami razlichnykh po dline tipov shchetinok, mozhno
predvaritel'no predpolozhit', chto imenno poslednii vid imel
korotkoshchetinkovyi tip cheshui. V etom sluchae dlya Kulindapteryx
ukureica gen. et sp. nov. ostaetsya dopustit' nalichie
dlinnoshchetinkovogo tipa pokrovnykh pridatkov.

Osobennosti stroeniya kozhnykh derivatov gipsilofodontii iz Kulindy
avtory predpolagayut obsudit' podrobnee v otdel'noi publikacii.

(Alifanov & Savel'ev 2014: 80--81)



Best regards,
-- 
David Černý